i'm having trouble emerging anything with portage under mac osx (10.4.2)
first off a whole bunch of packages hve been masked (becouse they'r already in OS X),
but they'r not in portage so when i try to emerge system it's a big nono(it want's to emerge masked packages), i thought of inserting a stub into portage(emerge -i) to make it think it's aready installed the software but that hits a snag too (sed: lstat: No such file or directory)

over here it just says to set the profile right and then run emerge system...

Calculating system dependencies |
!!! All ebuilds that could satisfy ">=sys-devel/autoconf-2.59-r6" have been masked.
!!! One of the following masked packages is required to complete your request:
- sys-devel/autoconf-2.59-r6 (masked by: package.mask)
- sys-devel/autoconf-2.59-r7 (masked by: package.mask)

For more information, see MASKED PACKAGES section in the emerge man page or
section 2.2 "Software Availability" in the Gentoo Handbook.
!!! (dependency required by "sys-devel/automake-1.5" [ebuild])

* checking 141 files for package collisions
existing file /usr/lib/portage/pym/cvstree.pyo is not owned by this package
existing file /usr/lib/portage/pym/emergehelp.pyo is not owned by this package
existing file /usr/lib/portage/pym/getbinpkg.pyo is not owned by this package
existing file /usr/lib/portage/pym/output.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_checksum.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_const.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_data.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_db_cpickle.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_db_flat.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_db_template.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_dep.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_exception.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_exec.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_file.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_gpg.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_localization.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_locks.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_util.pyo is not owned by this package
existing file /usr/lib/portage/pym/xpak.pyo is not owned by this package
* spend 0.182201862335 seconds checking for file collisions
* This package is blocked because it wants to overwrite
* files belonging to other packages (see messages above).
* If you have no clue what this is all about report it
* as a bug for this package on https://bugs.gentoo.org

Is there something I am missing here? I followed the directions and it's not working. I don't have X11 installed yet. Would that make a difference? Thanks!_________________--Time moves forward, whether or not you do.

* checking 141 files for package collisions
existing file /usr/lib/portage/pym/cvstree.pyo is not owned by this package
existing file /usr/lib/portage/pym/emergehelp.pyo is not owned by this package
existing file /usr/lib/portage/pym/getbinpkg.pyo is not owned by this package
existing file /usr/lib/portage/pym/output.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_checksum.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_const.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_data.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_db_cpickle.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_db_flat.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_db_template.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_dep.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_exception.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_exec.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_file.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_gpg.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_localization.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_locks.pyo is not owned by this package
existing file /usr/lib/portage/pym/portage_util.pyo is not owned by this package
existing file /usr/lib/portage/pym/xpak.pyo is not owned by this package
* spend 0.307098150253 seconds checking for file collisions
* This package is blocked because it wants to overwrite
* files belonging to other packages (see messages above).
* If you have no clue what this is all about report it
* as a bug for this package on http://bugs.gentoo.org

Emanuele$ sudo emerge system
Calculating system dependencies /
!!! All ebuilds that could satisfy "net-misc/iputils" have been masked.
!!! One of the following masked packages is required to complete your request:
- net-misc/iputils-021109-r3 (masked by: missing keyword)

For more information, see MASKED PACKAGES section in the emerge man page or
refer to the Gentoo Handbook.